JPH0640435B2 - Electronic computer - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electronic computer capable of appropriately changing program data and the like by exchanging a software package such as a ROM package.

<Prior Art> Conventionally, in a soft package exchange type electronic computer described above, a desired soft package is stored in a storage portion provided on the back or bottom of the computer, and it is replaced, for example, ▲ [RUN] ▼. ▲ [LOAD] ▼ ▲
The program data of the software package is executed or loaded by operating a key such as [CR] ▼.

However, the method as described above has a drawback that the software package has to be replaced one by one, and the work is very complicated. Besides, to execute or load, ▲ [RUN] ▼ or ▲ [LOAD] ▼ ▲
Key operations such as [CR] ▼ are required. For example, in the case of "execution", one [1] with ▲ [R] ▼ ▲ [U] ▼ ▲ [N] ▼
Key operation or definable key ▲ [F ₁ ] ▼ with RUN defined is necessary. In the former case, the number of key operations is large, which is complicated and malfunctions are likely to occur. However, in the latter case, there is a problem that a limited number of definable keys cannot be effectively used.

<Purpose> The present invention has been made in view of such conventional problems,
It is intended to provide a very easy-to-use electronic computer that can immediately execute or load data of a desired software package by key-touching the desired software package.

<Example> The present invention will be described in detail below with reference to the drawings.

FIG. 1 is an external perspective view of an electronic computer according to the present invention, and FIG. 2 is a detailed view of essential parts. In the figure, A is the computer body, DI
SP is a display section, and KEY is a keyboard with keys necessary for a computer such as letters, numbers and functions.

P _{1 to} P ₅ are software packages (for example, ROM packages storing programs) arranged above the keyboard KEY. This soft package is formed in a so-called rectangular parallelepiped keytop type, and is detachably mounted in the recessed storage portions X _{1 to} X ₅ . In addition, the RO enclosed in the package
As shown in FIG. 2, the M chip L is wire-bonded to the terminals C, C, which are contact terminals with one end exposed on the side wall of the package.

FIG. 2 is a vertical cross-sectional view of the soft package P ₁ and the storage portion X ₁ . The storage portion X ₁ is composed of a holder E for detachably storing and holding the soft package P ₁ and a flexible sheet FPC laid in the holder. The holder E has a concave cross section, and its open end is formed to bulge inward as shown. The holder is arranged inside the cabinet CAB so as to be vertically movable in the figure. A conductive pattern is formed on the surface of the flexible sheet FPC so as to elastically contact the terminals C, C of the soft package P ₁ , and this conductive pattern is coupled to the bus line connected to the CPU of the computer.

Therefore, when the soft package P ₁ is stored in the storage portion X ₁ , the conductive pattern of the flexible sheet FPC elastically contacts the terminals C, C of the package P ₁ by the pressing action of the bulging portion of the holder E, and ROM chip L
Is coupled to the bus line of the CPU.

Immediately below the holder E of the storage unit X ₁ thus configured, the diaphragm contact D provided on the printed circuit board PWB.
F is provided, and the soft package P ₁ is always pushed upward by the urging force of the diaphragm contact. The diaphragm contact DF is always connected to the conductive pattern A ₂ on the printed circuit board PWB, and when the diaphragm contact descends, the diaphragm contact DF comes into contact with another through-hole conductive pattern A ₁ . The short circuit signal of both patterns obtained by contact with the conductive pattern A ₁ is transferred to the CPU as a specific signal of the soft package. Therefore, the diaphragm contact and the conductive pattern A ₁ ,
A ₂ is provided independently corresponding to the holder E of each of the storage portions X _{1 to} X ₅ .

FIG. 3 is a block circuit diagram. In the figure, CPU is a central processing unit, DISP is a display unit, KEY is a keyboard, ROM ₀ is a read only memory, RAM is a read / write memory, and these constitute the basic circuit of the computer.
Further, P ₁ ... Represents a group of ROM packages housed in the housing section X ₁ ..., and these ROM packages are coupled to the bus line BL of the CPU at the same time when housed.

According to the above configuration, the key top type ROM packages P _{1 to} P ₅ each storing the program data are stored in the storage portions X _{1 to} X ₅ , respectively, and the diaphragm is generated when a desired ROM program, for example, P ₁ is pressed. Contact D
F is lowered and the conductive patterns A ₁ and A ₂ are short-circuited. Then, at this time, the short circuit signal is sent to the CPU, and the CPU discriminates the ROM package P ₁ that has been pressed down, that is, is selected by the signal, and at the same time, sends the chip select signal to the ROM package P ₁ through the bus line BL. Output and execute the program data of the package or load it into RAM.

Therefore, according to the above-described embodiment, it is not necessary to replace the ROM package one by one, and the desired ROM package can be immediately executed or loaded by simply touching the desired ROM package, and particularly complicated key operation becomes unnecessary.

<Effect> As described above, the electronic computer of the present invention has a keytop type soft package having a built-in ROM chip, an accommodating part formed in a main body cabinet, a holder arranged in the accommodating part, and a holder in the holder. It is equipped with a laid flexible sheet, a diaphragm contact that contacts the lower outer surface of the holder, and a printed circuit board that contacts the diaphragm contact.By touching the soft package of the above-mentioned storage section, the data stored in that package can be stored. Since it is configured to execute or load, it eliminates the need to replace the software package one by one, and at the time of execution or loading, it is sufficient to simply touch the desired software package without entering a special command like before. . Therefore, it is possible to provide a very easy-to-use electronic computer.

[Brief description of drawings]

FIG. 1 is an external perspective view of an electronic computer according to the present invention, FIG. 2 is a cross-sectional view of an essential part of FIG. 1, and FIG. 3 is a block circuit diagram. A is a computer, KEY is a keyboard, X _{1 to} X ₅ are storage parts, P _{1 to} P ₅ are ROM packages, and L is a ROM.
Chip, FPC is a flexible sheet, E is a holder,
DF is a diaphragm contact, PWB is a printed circuit board, A ₁ ,
A ₂ is a conductive pattern, and CPU is a central processing unit.

Continuation of front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location H03M 11/22

Claims (1)

[Claims] 1. A keytop type soft package having a built-in ROM chip and having contact terminals exposed on a side wall, a plurality of storage parts formed in a main body cabinet, and vertically arranged in the storage parts. A holder having a concave cross section, a diaphragm contact that contacts the lower outer surface of the holder, and a printed circuit board on which a conductive pattern that contacts the diaphragm contact and switches are provided, and by key-touching the soft package of the storage section. An electronic computer which is adapted to execute or load data stored in the software package.